Near-Net Shape Manufacturing of Hull Structures in Ship-Building by Using Control of Temperature Distribution and Material Properties

通过控制温度分布和材料性能实现造船中船体结构的近净形制造

• 批准号: 20360393
• 负责人: MOCHIZUKI Masahito
• 金额: $ 12.06万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360393/
• 关键词: 溶接変形; ニアネット; プロセス中制御

It is important for the quality of hull structures in ship-building to increase precision of manufacturing process such as cutting, welding and assembling. Weld distortion is one of the most important factors for precise manufacturing, but it was difficult to intentionally control weld distortion. A new methodology of controlling weld distortion for near-net shape manufacturing is studied by using control of temperature distributions during weld process and material properties in hull plate and weld metal.

提高切割、焊接、装配等制造工艺的精度，对提高船体结构的制造质量具有重要意义。焊接变形是影响精密制造的重要因素之一，但要有意识地控制焊接变形是困难的。通过控制焊接过程中的温度分布和船体板及焊缝金属的材料性能，研究了一种控制近终形制造中焊缝变形的新方法。

项目成果

Prediction of WeldingDeformation of Shell and Multiple-PipeComponents

壳体及多管构件焊接变形预测

• 发表时间: 2009
• 作者: S.;Itoh;M.;Shibahara;M.;Mochizuki;H.;Murakawa
• 通讯作者: Murakawa

Weld Residual Stress and Distortion byConsidering Process Mechanics

考虑工艺力学的焊接残余应力和变形

• 发表时间: 2009
• 作者: M.;Mochizuki;S.;Okano;H.;Shirai
• 通讯作者: Shirai

Influence of Initial ResidualStress by Rolling Process on WeldingDistortion of Stiffened Plate

轧制初始残余应力对加筋板焊接变形的影响

• 发表时间: 2009
• 作者: S.;Itoh;S.;Okano;M.;Mochizuki;H.;Murakawa
• 通讯作者: Murakawa

Observation of Fatigue Crack Propagation Paths in Ferrite-Martensite LamellarSteels

铁素体-马氏体层状钢疲劳裂纹扩展路径的观察

• 发表时间: 2008
• 作者: A. Inao;Y. Mikami;K. Nakashima;H. Shimanuki;M. Mochizuki;M. Toyoda
• 通讯作者: M. Toyoda

A Parametric Study on the Effect of the Transformation Expansion of High-strength Weld Metals on the Restraint Stress

高强度焊缝金属相变膨胀对约束应力影响的参数化研究

• 发表时间: 2008
• 作者: Y. Mikami;M. Mochizuki;M. Toyoda
• 通讯作者: M. Toyoda